What is another word for Vaticide?
Pronunciation: [vˈatɪsˌa͡ɪd] (IPA) 
Vaticide is, unfortunately, a word with no synonyms, as it refers specifically to the act of killing a prophet. However, there are related words that might be useful in more general contexts. Homicide, for example, refers to the killing of any human being, while regicide specifically refers to the murder of a monarch. Patricide is the act of killing one's own father, while matricide is the act of killing one's own mother. Infanticide refers to the killing of a child, while genocide refers to the deliberate killing of a particular group of people. While there may not be a direct synonym for vaticide, there are plenty of related words with similar connotations.
